peterpontus's reviews

Tamron 28-75mm f/2.8 XR Di LD Aspherical IF SP AF

This lens is similar to the Tamron 17-50 in terms of built quality and image quality. My copy may have an issue because it lacks sharpness on the edges of the APS-C frame. I see this lens, as a future full frame standard zoom if it is a good copy. Given that images are blurred on the edges of the APS-C frame, I wonder how bad it would be when used with a full frame body. But for now, I'd only write the pros and cons of this lens as I used it on APS-C.

Pros:
- great sharpness in the 2/3 of the frame (center)
- fast f/2.8
- sharp when closed 1 stop, tack sharp when closed two stops
- cheap
- reliable AF
- works with 24x36 image circle
- Tamron 5 years guarantee


Cons:
- a bit heavier that 17-50 (feels like 28-75 has more glass)
- noisy AF

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